I am the tree hugger, and I like to take care of the environmentI want more ways to take care of the environment.
the manual to my cooker says not to use foil because of heat damage (presumably the possibility that all that reflection of heat will make it too hot under the grill)So if nothing else you could invalidate your warranty.
For a pocket stew the dull side is on the outside to absorb the heat and the shiny side is on the inside to keep reflecting the heat into the stewFor a kite flying at night that might be reported as a UFO I would recommend shiny side at the front.
that is a myth, the only difference might be how much heat is reflectedGo to Discovery or Metacafe and type How it is made, aluminum foil and you will see why it is a myth.
For cooking, it's little differenceFor tinfoil hats, make sure the shiniest side is out so you can best deflect the alien's mind-control rays emitting from their secret base on Neptune.
